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On October 24th, Zoomlion QAY2000 all-terrain crane of the world's largest tonnage wheeled crane successfully completed the maximum rated lifting moment load test of 6,000 tons·m in the Quantang Industrial Park of the construction crane company! The crane is able to easily lift the 600-ton weight off the ground with a 30.3-meter arm length and a 10-meter range. The lifting torque of 6,000 tons and lifting weight of 600 tons both break the world record for maximum crane loading of wheeled cranes. At the same time, it also indicates that the most advanced QAY2000 crane on behalf of the industry has achieved the design expected performance indicators. The successful loading of the test conditions laid a solid foundation for product testing and market application.
Zoomlion QAY2000 is currently the world's largest wheeled crane. It successfully went offline in September 2012. The success of this test means that Zoomlion has become a leader in the technology of domestic ultra-large wheeled cranes, and Zoomlion Crane once again reached the highest point in the world. Luo Xianzhi, head of Zoomlion's large tonnage truck crane product research institute, introduced: After the success of this test, a simulation test of a 3 MW fan and maximum lifting capacity will also be carried out to prepare it for successful market launch.
In the research and development process of Zoomlion QAY2000 all-terrain crane, more than 80 patents for proprietary technologies were generated, and patents for invention exceeded 60%, including many innovative technologies that were first applied in the world and were successfully applied, such as the structure of elliptical cross-section legs and the pulling of legs. The innovation of cable deformation structure type and honeycomb frame structure is based on precise control of rope length, orderly rope, active compensating super-lifting mechanism and control strategy, variable amplitude flying arm structure for fan hoisting conditions, and double Engine compound power concept and control strategy and so on. Although QAY2000 possesses superior hoisting capacity, it does not blindly follow “bigâ€. It is achieved through adequate market research and development under the concept of user-centered R&D. With the promotion of large-scale wind power projects of 3MW and above, the QAY2000 market with wind power construction capacity of 3MW or above is very promising. Large-scale petrochemical and metallurgical projects will also increase the market demand for QAY2000. This research and development of market and technology two-way positioning products will become a major event in the development history of all-terrain cranes.
In recent years, Zoomlion Construction Crane Co., Ltd. has used super-large all-terrain crane product development as a carrier to master key technologies of a series of oversized tonnage all-terrain cranes. As a result, the company’s products have been updated, climbed new heights, and eventually occupied the entire ground. The leading position of crane technology.